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US4778432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drum boy
Assignee: PARK & PARK'S Inc
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Filing: 1987-05-08
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Granted: 1988-10-18
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Expires: 2007-05-08
Abstract
Abstract A doll of a person with a drum who alternately appears to be beating the drum with his left and right hands while his head rotates left and right and a melody is playing. The doll includes a head portion, a torso portion, a limbs portion, a drum portion, a base portion, means to alternately raise and lower the hands in sequence and to alternately rotate the head left and right, and a melody module. The head portion includes a head which resembles a human and a drive pin. The torso portion is hollow and resembles the body of a human. The limbs portion resembles a human and includes a right arm, a right hand, a left arm, a left hand, a right leg, and a left leg. The drum portion includes a drum with a seat at its rear. The base portion includes a housing with feet on its bottom. The means to alternately raise and lower the hands in sequence and to alternately rotate the head left and right include a motor, two spaced cams, two spaced lefters, two spaced push rods, two spaced arm assembles, a head swivel assembly, gearing which transmits the motion of the motor to the cams, and wiring connecting the motor and melody module to a power source. The cams rotate at 180 degrees out of phase with each other. The lifters are operatively located above the cams and the push rods are operatively located above the lifters. Each of the arm assemblies is operatively connected to one of the push rods. The head swivel assembly is operatively connected to the arm assemblies.
Inventors
- 👤 Nam J. Yeu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 22:45
CPC Classifications
A; A63; A63H; A63H13/00; A63H13/02; A63H13/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
323 words
A drum boy comprising: a head portion, a torso portion, a limbs portion, a drum portion, and a base portion; the head portion includes a head which resembles a human and a head drive pin; the torso portion is hollow and resembles the body of a human; the limbs portions includes a right arm, a right hand, a left arm, a left hand, a right leg, and a left leg; the head is pivotally connected to the top of the torso portion, the right arm and the left arm are pivotally connected to the sides of the torso portion, and the right leg and the left leg are connected to the sides of the torso portion; the drum portion includes a drum with a seat at its rear; the bottom of the torso portion is secured to the seat; the base portion includes a housing with feet on its bottom; the drum portion is secured to the top of the housing; means to alternately raise and lower the hands in sequence and to alternately rotate the head left and right a predetermined distance include a motor, gearing, wiring connecting the motor to a power source, two spaced cams, two spaced lifters, two spaced push rods, two spaced arm assemblies, a head swivel assembly, the motion of the motor is transmitted to said gearing which is connected to the two spaced cams that when rotated engage said two spaced lifters and push them upward into contact with said two spaced push rods that are connected to the two spaced arm assemblies that are connected to said head swivel assembly that when rotated causes the heat to rotate left and right, the lifters are operatively located above the cams and the push rods are operatively located above the lifters; each of the arm assemblies is operatively connected to one of the push rods; and the head swivel assembly is operatively connected to the arm assemblies.
Claim 2
Dependent Claim
323 words
A drum boy comprising: a head portion, a torso portion, a limbs portion, a drum portion, and a base portion; the head portion includes a head which resembles a human and a head drive pin; the torso portion is hollow and resembles the body of a human; the limbs portions includes a right arm, a right hand, a left arm, a left hand, a right leg, and a left leg; the head is pivotally connected to the top of the torso portion, the right arm and the left arm are pivotally connected to the sides of the torso portion, and the right leg and the left leg are connected to the sides of the torso portion; the drum portion includes a drum with a seat at its rear; the bottom of the torso portion is secured to the seat; the base portion includes a housing with feet on its bottom; the drum portion is secured to the top of the housing; means to alternately raise and lower the hands in sequence and to alternately rotate the head left and right a predetermined distance include a motor, gearing, wiring connecting the motor to a power source, two spaced cams, two spaced lifters, two spaced push rods, two spaced arm assemblies, a head swivel assembly, the motion of the motor is transmitted to said gearing which is connected to the two spaced cams that when rotated engage said two spaced lifters and push them upward into contact with said two spaced push rods that are connected to the two spaced arm assemblies that are connected to said head swivel assembly that when rotated causes the heat to rotate left and right, the lifters are operatively located above the cams and the push rods are operatively located above the lifters; each of the arm assemblies is operatively connected to one of the push rods; and the head swivel assembly is operatively connected to the arm assemblies.
Claim 3
Dependent Claim
47 words
The drum boy of claim 1, wherein there is a switch, a melody module, a speaker, and a battery compartment within the housing; the switch is secured to the side of the housing; wires connect the switch, the melody module, and the speaker to the power source.
Claim 4
Dependent Claim
98 words
The drum boy of claim 2, wherein the gearing that transmits the motion of the motor to the cams include a drive gear that is connected to a shaft of the motor, two spaced gears on a shaft, two gears on a second shaft, and a gear on a shaft that connects the cams; the drive gear meshes with one of the spaced gears; the other spaced gear meshes with one of the two gears on the second shaft; and the other gear on the second shaft meshes with the gear on the shaft that connects the cams.
Claim 5
Dependent Claim
202 words
A drum boy doll comprising: a head, a body being hollow and resembling the torso of a human, a right arm, a left arm, a right hand, a left hand, a right leg, a left leg, a drum, and a base portion; the head is pivotally connected to the top of the body, the right arm and left arm are pivotally connected to the sides of the body, and the right leg and the left leg are connected to the sides of the body; the drum is located on the top of the base portion and in front of the body; means to alternately raise and lower the hands and to alternately rotate the head horizontally including drive means, two spaced cams, and two spaced lifters located within said drum and activating means located in said body; the drive means are operatively connected to the two spaced cams; one end of the spaced lifters engage said activating means when moved by one of said cams; and said drive means, when activated, rotate the cams which in turn move the lifters to engage the activating means, causing the alternate raising and lowering of the hands and the alternate horizontal rotation of the head.
Claim 6
Dependent Claim
202 words
A drum boy doll comprising: a head, a body being hollow and resembling the torso of a human, a right arm, a left arm, a right hand, a left hand, a right leg, a left leg, a drum, and a base portion; the head is pivotally connected to the top of the body, the right arm and left arm are pivotally connected to the sides of the body, and the right leg and the left leg are connected to the sides of the body; the drum is located on the top of the base portion and in front of the body; means to alternately raise and lower the hands and to alternately rotate the head horizontally including drive means, two spaced cams, and two spaced lifters located within said drum and activating means located in said body; the drive means are operatively connected to the two spaced cams; one end of the spaced lifters engage said activating means when moved by one of said cams; and said drive means, when activated, rotate the cams which in turn move the lifters to engage the activating means, causing the alternate raising and lowering of the hands and the alternate horizontal rotation of the head.
Claim 7
Dependent Claim
60 words
The drum boy doll of claim 4, wherein the base portion includes a housing with feet on its bottom; there is a switch, a melody module, a speaker, and a battery compartment within the housing; the switch is secured to the side of the housing; and wires connect the switch, the melody module, and the speaker to a power source.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-10-18 | 1992-04-18 | 1992-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-10-18 | 1996-04-18 | 1996-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-10-18 | 2000-04-18 | 2000-10-18 | $7700.00 | Window Closed / Lapsed |